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Overview

P-Code (DTC)
summary list

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Sheet 1: P-Code (DTC)

DTC - Diagnostic Trouble Code
The diagnostic trouble code consists of an alphanumeric designator, B0 -- B3 for body, C0 -- C3 for chassis, P0 --
P3 for powertrain, and U0 -- U3 for network communication, followed by three characters. The assignment of the
proper alpha designator should be determined by the area most appropriate for that function. In most cases, the
alpha designator will be implied since diagnostic information will be requested from a particular controller. However,
this does not imply that all codes supported by a particular controller shall have the same alphanumeric designator.
ISO/SAE controlled codes (core DTCs)
ISO/SAE controlled diagnostic trouble codes are those codes where industry uniformity has been achieved. These
codes were felt to be common enough across most manufacturers’ applications that a common number and fault
message could be assigned. All unspecified numbers in each grouping have been reserved for future growth.
Although service procedures may differ widely amongst manufacturers, the fault being indicated is common enough
to be assigned a particular fault code. Codes in this area are not to be used by manufacturers until they have been
approved by ISO/SAE.
some of the P-Codes
P0001	Fuel Volume Regulator Control Circuit/Open
P0003	Fuel Volume Regulator Control Circuit Low
P0004	Fuel Volume Regulator Control Circuit High
P0087	Fuel Rail/System Pressure - Too Low
P0088	Fuel Rail/System Pressure - Too High
P0090	Fuel Pressure Regulator 1 Control Circuit
P0091	Fuel Pressure Regulator 1 Control Circuit Low
P0112	Intake Air Temperature Sensor 1 Circuit Low
P0113	Intake Air Temperature Sensor 1 Circuit High
P0117	Engine Coolant Temperature Circuit Low
P0118	Engine Coolant Temperature Circuit High
P0122	Throttle/Pedal Position Sensor/Switch "A" Circuit Low
P0123	Throttle/Pedal Position Sensor/Switch "A" Circuit High
P0182	Fuel Temperature Sensor A Circuit Low
P0183	Fuel Temperature Sensor A Circuit High
P0201	Injector Circuit/Open - Cylinder 1
P0202	Injector Circuit/Open - Cylinder 2
P0203	Injector Circuit/Open - Cylinder 3
P0204	Injector Circuit/Open - Cylinder 4
P0222	Throttle/Pedal Position Sensor/Switch "B" Circuit Low
P0223	Throttle/Pedal Position Sensor/Switch "B" Circuit High
P0230	Fuel Pump Primary Circuit
P0231	Fuel Pump Secondary Circuit Low
P0237	Turbo/Super Charger Boost Sensor "A" Circuit Low
P0238	Turbo/Super Charger Boost Sensor "A" Circuit High
P0344	Camshaft Position Sensor "A" Circuit Intermittent
P0650	Malfunction Indicator Lamp (MIL) Control Circuit
P2614	Camshaft Position Signal Output Circuit/Open
P2617	Crankshaft Position Signal Output Circuit/Open

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Sheet 2: summary list

P-code	Part or System	Mode	Run or condition	Engine can start?	Check engine alarm
P2617	Speed sensor (crank)	No connection / short circuit	no	no	alarm
P0344		Difference from speed sensor (cam)	no	no	alarm
P2614	Speed sensor (cam)	No connection / short circuit	reduced	yes	alarm
	Ccoolant temp	Under 0° C	1000 rpm	yes	no
P0118		Over 108° C	yes	yes	alarm
P0118		Over 110° C	reduced	yes	alarm
P0118		No connection / short circuit to Ground	reduced	yes	alarm
P0117		Short circuit to B+	reduced	yes	alarm
	Charge air temp	Over 110° C	reduced	yes	no
P0112		Over 125° C	reduced	yes	alarm
P0113		Under -20° C	reduced	yes	alarm
P0113		No connection / short circuit to Ground	reduced	yes	alarm
P0112		Short circuit to B+	reduced	yes	alarm
P0238	Boost pressure	4 bar (absolute)	reduced	yes	alarm
		4BY - over the 2.9 bar (absolute) 6BY - over the 3 bar (absolute)	yes	yes	alarm
P0237		Under the 0.5 bar (absolute)	reduced	yes	alarm
P0236		Plausibility- check for Atmospheric Pressure Sensor failure	reduced	yes	alarm
P0237		No connection / short circuit to Ground	reduced	yes	alarm
P0238		Short circuit to B+	reduced	yes	alarm
	Fuel temperature	Over 90° C	reduced	yes	no
P0183		No connection / short cuircuit to Ground	reduced	yes	alarm
P0182		Short cuircuit to B+	reduced	yes	alarm
P0087	Fuel rail pressure	Short cuircuit to Ground	reduced	yes	alarm
P0088		No connection / short cuircuit B+	reduced	yes	alarm
P0090	Fuel rail pressure control valve	Not connected	no	no	alarm
P0092		Short circuit to B+	no	no	alarm
P0091		Short circuit to Ground	yes	yes	alarm
P0001	Metering unit	Not connected	reduced	yes	alarm
P0004		Short circuit to B+	reduced	yes	alarm
P0003		Short circuit to Ground	reduced	yes	alarm
P0230	Fuel feed pump	Not connected when engine runs	no	-	alarm
P0230		Not connected when engine stops	-	no	alarm
P0232		Short circuit to B+	no	no	alarm
P0231		Short circuit to Ground	no	no	alarm
U0001	CAN throttle signal	No signal	idle	yes	alarm
P0122 / P0222	Throttle signal	Both signals missing / short circuit to Ground	1600	yes	alarm
P0123 / P0223		Both signal are short circuit to B+	1600	yes	alarm
P0122		Signal 1 is missing / short circuit to Ground	reduced	yes	alarm
P0123		Signal 1 short circuit to B+	reduced	yes	alarm
P0222		Signal 2 is missing / short circuit to Ground	reduced	yes	alarm
P0223		Signal 2 short circuit to B+	reduced	yes	alarm
	Voltage	Over 18 V	no	no
		Below 4.8V	reduced	yes
	Alternator	No generation
P-code	Part or System	Mode	Run or condition	Engine can start?	Check engine alarm
P0201	Injector no.1	Open circuit / short circuit to Ground	reduced	yes	alarm
P0261		Short circuit to B+	reduced	yes	alarm
P0202	Injector no.2	Open circuit / short circuit to Ground	reduced	yes	alarm
P0264		Short circuit to B+	reduced	yes	alarm
P0203	Injector no.3	Open circuit / short circuit to Ground	reduced	yes	alarm
P0267		Short circuit to B+	reduced	yes	alarm
P0204	Injector no.4	Open circuit / short circuit to Ground	reduced	yes	alarm
P0270		Short circuit to B+	reduced	yes	alarm
P0205	Injector no.5	Open circuit / short circuit to Ground	reduced	yes	alarm
P0273		Short circuit to B+	reduced	yes	alarm
P0206	Injector no.6	Open circuit / short circuit to Ground	reduced	yes	alarm
P0276		Short circuit to B+	reduced	yes	alarm
P2049	4BY - injector bank 1 6BY - injector bank 1	Short circuit on High Side to Ground or B+ Short circuit on High Side to Ground or B+	no reduced	no no	alarm
P2052	4BY - injector bank 2 6BY - injector bank 2	Short circuit on High Side to Ground or B+ Short circuit on High Side to Ground or B+	reduced reduced	yes yes	alarm
P0607	Injector chip fault		no	no	alarm
P0650	Check engine lamp	Not connected, short circuit	yes	yes	alarm
P0671	Glow plug 1	Not connected, short circuit	yes	yes	alarm
P0672	Glow plug 2	Not connected, short circuit	yes	yes	alarm
P0673	Glow plug 3	Not connected, short circuit	yes	yes	alarm
P0674	Glow plug 4	Not connected, short circuit	yes	yes	alarm
P0675	Glow plug 5	Not connected, short circuit	yes	yes	alarm
P0676	Glow plug 6	Not connected, short circuit	yes	yes	alarm
P0087	Fuel rail pressure governor deviation	Fuel rail pressure governor deviation exceeds / falls below a limit	reduced or shut off	depends on fault	alarm
P0088	Fuel rail pressure governor deviation	Fuel rail pressure governor deviation exceeds / falls below a limit	reduced or shut off	depends on fault	alarm
P0089	Fuel rail pressure governor deviation	Fuel rail pressure governor deviation exceeds / falls below a limit	yes	yes	alarm
P0090	Fuel rail pressure governor deviation	Fuel rail pressure governor deviation exceeds / falls below a limit	reduced	yes	alarm
P0689 P0690	Main relay	Power relay sense short circuit low Power relay sense short circuit high	no	no	alarm
P0602	Control Module Programming Error	Overvoltage / undervoltage	no	no	alarm
P0602	Shut off path	Control module programming error	no	no	alarm
P0642 P0643	Sensor supply monitoring 1	Short circuit	reduced	yes	alarm
P0652	Sensor supply monitoring 2	Short circuit	reduced	yes	alarm
P0653	Sensor supply monitoring 3	Short circuit	reduced	yes	alarm
P0562 P0563	System voltage low System voltage high		yes	yes	alarm
P2227	Atmospheric pressure	Plausibility- check for Boost Pressure Sensor failure	yes	yes	alarm
P2228 P2229		Short circuit low Short circuit high	yes	yes	alarm
P0426	Immobilizer	Manipulation / Tamper error	no	no	alarm